Improvement in wagon-jacks



naar cfm GEORGE BENEDIOT FOWLER, OF BROOKLYN, NEW YORK.

LettersPatent No. 113,285, dated April 4, 1871.

IMPROVEMENT IN WAGON-JACKS.

The Schedule referred to in these Letters Patent and making part of the sama.

To all whom it may concern Be it known that I, GEORGE BENEDICT FowLnR, of Brooklyn, in the county of Kings and State of New York, have invented a `new and improved `Va-gon- Jack; and I do hereby declare that the following is a full, clear, and exact description of the same,'reference being had to the accompanying drawing making a part of this specification.-

This invention relates to a new and improved wagon-jack of thatclass in which a lever, pawl,and rack are employed for raising the axle and wheel and retaining them to the desired height.

The invention consists, substantially, in the employment' or use of a :finger-rod` connected with the pawl, as hereinafter fully shown andldescribed, whereby the pawl, when necessary, isrhelxd ,engagedwith therack` withoutthe intervention'of a spring, and the pawl,

when necessary,"allowed to disengage.itself` from the' rack simply by its own gravity. g

The invention further consists in the employment or use of T-shaped fulcruxn-bearings,` ets-hereinafter fully shown and described, whereby efticient'bearings are obtained for the lever Vwhile operating thesame either upward or downward', and the lever efiectually prevented from becoming casually disengaged. f

In the accompanying ldrawing Figure l is a side elevation of my invention.

Figure 2,'a front view of the same, looking in the direction of arrow 1.

Figure 3, a transverse section of the lever, taken in the line x x, iig. 1. v

Similailetters oi' reference indicate corresponding parts in the several figures. l

A represents the base of the'machine; and

B,'an upright or standard, 'which is framed intothe hase about at its center, and firmly secured by a brace, C.

The upright'B has a slot, I), made in it for the lever E to work through, the fulcrum a of said lever working in T-shapedbearings, b, which are inade in i the sides of the upright or standard, and faced at each side with a metallic plate, b, which ohviates wear.

It will beseen that the T-shaped slots b will 4effectuall y prevent the iiilcrum-pin a iroin'slippingont from its hearings, both while the lever is moved in an upward and downward direction, and at the same time thel fulcrum-pin of the lever may be very readily adjusted higher or lower in thebearings--that isto say, taken from one bearing and fitted in one higher or lower, with the greatest facility.

' The lever E has a pawl, F, suspended to it near its outer end 'and a short distance from the upright or standard, as shown clearly in fig. 1, and said pawl has a rod, C', affixed to it, which extends back through a guide, c, on the lever, as shown more particularly in lig. 1.

The pawl has a tendency to swing outward or free from the rack G, which is secured to the upright or standard B, said rack being ofcastiron or other suitable metal.

From the above description it will be seen that, when the long arm of the lever E is pressed downward, the short arm will be raised,and if the short arm be adjusted under the axle, the latter, with its wheel,- will also be raised and retained at thedesired height by the pawl -F, the latterbeing retained or kept in cont-act with'the rack by drawing back on the rod C' by means of the finger. On releasing the rod O the pawl F will immediately swing outward free from the rack, and the axle may be -let down gradually to its original or normal position.

li am aware that a lever, pawl, and rack, similar to the ones herein shown and described, have been used in wagon-jacks; and l therefore do not claim the above-named parts separately, but having thus described my invention,

What I claim as new, and desire to secure by Letters Patent, is

l. lhe arrangement, in the lifting -jlack herein shown and described, of the lever E, swinging pawl F, rack G, Tshaped bearings b, the whole constructed and arranged to operate substantially as set forth.

2. The rod c', lever E; swinging pawl F, rack G, and the T-shaped bearings b l), constructed, arranged,

and operating substantially in the manner as herein shown and described.

' GEO. B. FO'WLER.

Witnesses:

A. R. HAIGHT, M; AoKnnMAN. 

